Fish-screen for ditches.



A. J. COLLAR.

FISH SCREEN FOR DITGHES. APPLICATION FILED 81:14.30, 1907.

H M. m 9% A m W% m m .M M 1 Mf W/ rlvfiifi ,1 ADONIBAM "J. coins, orYREKA, :camronnm.

msn-sonnmr To all whom it may concern: a

Beit'known that I, Amman; J. ConLAn,

citizen of the United States, residingat .Yreka, in the countyof'Siskiyou and State of California, have invented new and usefulImprovements in Fish-Screens for Ditches,-

' of which thefollowing is a specification;

- My invention relates to an apparatusby which small fish are preventedfI'OIH'bGIHg carried from the streams in which they live into irrigatingand other d tches which are Qxcsigned to .take water from suchstreamsfor other uses.

It consists in the combination of parts and in details or constrmztionwhlch willbe. more fully explained by reference to'the ac- I companyiugdrawings in whicl1- Figure 1 is a plan view partly broken of a I V fishscreen. Fig. 2 is alongitudinal section of the same. Fig. 3 is avertical sectionon .line X-X Fig. 1v showing the gear con'-.' meet-ions..Fig. i is a vertical sectional view. natural" here; water is taken fromstreams through artificial dltchesfor} 1r-.

,rigatin'g, power or other purposes, it often. a

hold the vanes or floats 1n then proper pooocurs that small fish livingin such streams are carried into thcditches, and if some means is notemployed to prevent their passing on through the ditch, they 'lll. beeventually thrown out upon the land during the, process of irrigation,and destroyed.

ltis the object of my invention to prevent the destruction and loss offish in this manner.

As shown in the drawings. A is a cylinder which may be made with 'closedends and with a screen surface; this screen having a mesh such -as isrequired by law,. which is nine meshes to the square inch; This wheel ismade of any suitable or desired diameter, depending somewhat u'ponthesize of the ditch within which it is to be used. For convenience thewheel may-be journalcdin a structure as at B, in which the ends of thewheel extends. into chambers 2 which are built out upon each side of theactual width of the sluice-through which thewater flows, and guards 3,areso placed on the inlet side as to prevent anything flowing throughthe stream from entering these chambers.

Within the screen wheel A and concentrically therewith, is journaled a.paddlewheel; the shaft of which extends loosely through the ends or thescreen-wheel, which screenrwheel maybe journaled directly uponSpecification of Letters Patent. Application filed September soiiieo'z,SerialNo. 395,158;

FOB. DITCHES. 1

. rammed Maya, 1911.

the sliaft 'of 'the paddle-wheel; or it may have 't-ubular journalsthrough which the journals of theinnerfivheel pass; the con- H'struction being such as to allow the inner fivheel to turnindependently of the outer one.

dles 5 .extend1ng across-from side to side and having pivots upon theirouter edges 'so that the paddles will swing down by gravitation '.Theinner paddle-wheel has vanes or padto stand across the flowing current,and thus .turnthe wheel," with the bottom moving in the direction ofthecurrent flow." I' have .here shown these vanes or floats made insections, eachouter section overlapping an .inner' one, and'wheninposition to receive .the water pressu'rc,"they will form practicall a:single; float lcxtending across'the whee After the wheel has passed thelower -centcrjan d beginst'o rise upon the opposite side, thes floatswill swing by gravitation 5 into asub'stantially, vertical position,which they will mainta-in while risingand passing over the upper arc bftheir travel.

Suitablestops Gniay be so disposed as to sit-ion to resist the pressureof the water when being acted 'upon,.'and to stop'them atthe properpoint'when passing over the top of the wheel.

A suitable dam or guard 7 is fixed-in the 7 ject being to check allrubbish flowing through the sluice or ditch, and to carry it over thetop of the wheel, and deposit it in the sluice belowithe wheel.

If a stationary screen is -fixed in the sluice, it soon becomes cloggedwith' fine moss-and other rubbish which will be carried by the ditch,and the screen will eventuall form a dam which will prevent water romflowing freely in the ditch. By

the use of a revoluble screenI'am enabled to constantly clear the ditchof-such flowing rubbish, and to maintain the screen in' a suflicientlyopen condition to allow the water to flow freclyj while at the same timeit will prevent any fish from passing through. Contactof thefishwith themovios - ent case I have shown to the screen.

ing screen will causejthem 5- inake an effort to get out of. thethe-stream, and they will not be carried over the screen-wheel with thefloating rubbish. a

In'order to transmit power to rotate thescreen sothat its lower partmoves in a direction against the flow. of the current,- any suitablemotor drivenby the current, or otherwise, may be employed. [In thepressuch cohnections'betweenthe addlei-wheel andv the screen drum as wiltransmitthe proper motion- Such a transmitting device consists of apinion; 8 fixed upon the end of the paddle-.wheelj shaft, and aninternal gear 9 carried by the screen drum.

Between the pinion and the internal gear is journaled a gear-wheel 10which meshes with the pinion -8 upon one side, and withe the gear9 uponthe otherso that the movement of the paddle-wheel in one direction,

caused by the flow of-the stream, will im-- 'pa-rt acontrary revolution-to the screen- Ilaving thus (l0S(:1 ibB(l'11. f invention,

way by' running .up

' chambers,

what I claim and desire to secure by Letters Patent is-A v 1. Thecombination with a. sluice-way having extended chambers in the sides, of

a foraminous drum extending horizontally across thesluice way andjournaledin said a water-wheel within the drum having itsa-xisconcentric with that of said drum, and connections between thewater wheel anddrum by which the latter 1s continuously revolved withits submerged portion moving against the current flow.

2. In a fish-screening ,apparatus, the combination with a sluice-wayhaving extended chambers in the sides, and'a guardfixed in thesluice-way and extending transverse ly across the same, of a,screen drumournaled transversely of the slulce-way substantially close to theguard, said guard deliver material carried by the adapted to streamagainst 'the screen, mechanism by which'the screen is revolved in adirection against the current flow, whereby the material is constantlycarried over the drum and the openings thereof prevented from beingclogged, said mechanism consisting of a water wheel journaled within thedrum and connections d-rum, said drum having-its ends extending into theside chambers of the sluice-way.

In testimony whereof I have hereunto set my hand in presence'oftwo'subscribing witnesses.

I ADONIRAM J COLLAR. Witnesses CHAS. B. HOWARD, FRANK W; Hoornn.

between said wheel and the

